First of all if you don't know what Windows Sandbox is, it's the new Feature that is coming to Windows 10 Pro soon, where you can open a completely sealed off Windows System inside your System, like VirtualBox, but from Microsoft. It will be used to test suspicious executables.

So, I have two questions:

1. Do you think that Games will run smoothly in Windows Sandbox?
If you setup a VirtualBox you can only give it 256MB VRAM so you can't use it to game or do Game Hacking

2. Do you think you can bypass bans with Windows Sandbox?
You could theoratically bypass a HWID and MAC Adress ban with VirtualBox, but you can't get any Game to run in VirtualBox, because it can't access the GPU or any advanced Graphics. If Windows Sandbox uses the GPU AND really changes HWID, Hard Disk ID, MAC Adress and all the other things that Anticheats Ban after restarting it, you could theoretically bypass bans with it.

yeah this is what i had in mind you can only add a bit of ram so you really couldn't run a game but it would be cool if someone found a way to bypass that limit.
might try and bypass it when it comes out